1993 GMC Jimmy Owner's Manual - Page 151

Heating System i I If your vehicle does not have air conditioning, this systemwill look like. is what your heating Fan Lever Theleveratthetop of thesystemhasfourpositions. To increasetheair HI. To decreasetheairflow,moveittoward OFF. flow,movethelevertoward Temperature Lever Theleverontheleftofthesystemletsyouselectthetemperature of theair up forwarmerair.Movethelever flowing into yourvehicle.Movethelever down for cooler air. Function Lever Theleverontherightofthesystemcanbemoved functions. , to threedifferentheating DEFROST: Thissettingoperatesthedefroster. Most oftheaircomesout nearthewindshield,withsomegoing to thefloorventsandsidewindow defrostvents.Usethiswhenyouget fog or iceonthewindshield. HTR (Heater): Mostofthe air comes out near thefloor. The restcomesout from the defroster vents under the windshield and at Thisisbestforcoldweather. the frontsidewindows. VENT: Theaircomes front side windows. out attheventsonyourinstrumentpanelandatyour 3-5